US2344563A - Ejector - Google Patents

Description

21, 1944. L. F. PUNSALAN' 2,344,553

EJECTOR Filed Jain. 5, 1942 amen 1M Leon F. Punaulnn v Patented Mar. 21, 1944 UNH'E'ED STATES PATENT OFFICE EJECTOR Leon F. Punsalan, United States Army, Manila, P. I.

Application January 5, 1942, Serial No. 425,643

1 Claim. (01. 42-25) (Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to an ejector for a firearm and more particularly to an improved form of ejector for use in certain military rifles.

It is the primary object of this invention to increase the serviceable life of the ejector.

It is a further object to render the ejector more certain and sure in its action.

The exact nature of the invention as well as other objects and advantages thereof will clearly appear from a description of a preferred embodiment as shown in the accompanying drawing in which:

Fig. 1 is a plan view of the ejector and spring therefor.

Fig. 2 is a plan view of the ejector in assembled relation in the receiver.

Fig. 3 is a similar view of a modified form.

Fig. 4 is a side elevational view of a portion of the bolt stop shown in Fig. 3.

Referring to the drawing by characters of reference, there is shown in Fig. 1 an ejector adapted for use in a military rifle similar to the U. S. rifle, model of 1917. This ejector is adapted to be mounted on the receiver of the rifle by a pivot inserted through the hole I and engaging the receiver. In operation the point 2 of the ejector is caused to protrude laterally into the receiver by a spring 3 which is engaged between the ejector finger 4 and some relatively fixed part of the mechanism associated with the receiver. As the bolt is opened it is the function of the protruding ejector point to strike the rear end of the fired cases gripped by the extractor and to eject them through the side of the receiver.

Fig. 2 shows the ejector in assembled relation to the bolt 5, receiver 6 and bolt stop l. The ejector finger 4 is supported by means of a pivot screw 8 which engages fixed lugs on the receiver, holes in the bolt stop and the pivot hole I in the end of the ejector finger. It will be seen that the ejector and bolt stop are therefore free to be swung laterally into a position in which the point 2 of the ejector and the stop lug 9 of the bolt stop protrude into the interior of the receiver. A bolt stop spring Ill engaged between the bolt stop and the bolt stop spring rest II yieldingly maintains the bolt stop in position in which the stop lug 9 protrudes into the path of the slotted locking lug H on the bolt. A spring seat I3 is formed on the back face of the ejector finger adjacent the pivot and the helical spring 3 is engaged between the spring seat and the bolt stop spring 10. The helical spring 3 maintains the point of the ejector in contact with the bolt and causes the point to follow through the slot IS in the bolt into a position in rear of the cartridge case as the bolt is withdrawn rearwardly.

The modification shown in Fig. 3 is similar to that shown in Figs. 1 and 2 insofar as the general organization is concerned. A spring seat It has been formed on the back face of the ejector finger 4d at a point between and of the distance between the pivot 8a and the point 2a. A spring guide hole H has been formed in the body of the bolt stop 1a in opposition to the spring seat l6 and a helical spring 3a is supported therein in engagement with the spring seat I6 and bolt stop spring 10a tending to protrude the ejector finger into the interior of the receiver 60..

It has been found in practice that the helical springs used in my invention are much less liable to breakage than the integral leaf springs used in the original ejectors. Elimination of breakages of this type results in virtually complete elimination of ejection troubles with these rifles. Further, the new ejector is not as costly to manufacture as the old ejector, since commercially available helical springs may be used, doing away with the necessity for the precise forming and tempering required by the integral spring of the old ejector.

I claim:

In a firearm having a receiver, a bolt reciprocable therein, a bolt stop on said receiver restraining the movement of the bolt in one direction and having a guide hole therethrough, cartridge ejecting means comprising an ejector finger having one end pivotally supported on the receiver, and having the other end protruding laterally through said bolt stop, a spring seat between the ends of said finger and on the face thereof farthest from the interior of the receiver, and a helically coiled spring in the guide hole of the bolt stop with one end in engagement with said spring seat and the other in engagement with a relatively fixed element of the receiver mechanism, said spring yieldingly holding said other end of the finger in protruding position.

LEON F. PUNSALAN.

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